package org.apache.maven.scm.command.changelog;

 /*

  * Licensed to the Apache Software Foundation (ASF) under one

  * or more contributor license agreements.  See the NOTICE file

  * distributed with this work for additional information

  * regarding copyright ownership.  The ASF licenses this file

  * to you under the Apache License, Version 2.0 (the

  * "License"); you may not use this file except in compliance

  * with the License.  You may obtain a copy of the License at

  *

  * http://www.apache.org/licenses/LICENSE-2.0

  *

  * Unless required by applicable law or agreed to in writing,

  * software distributed under the License is distributed on an

  * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY

  * KIND, either express or implied.  See the License for the

  * specific language governing permissions and limitations

  * under the License.

  */

 import java.text.SimpleDateFormat;

 import java.util.Date;

 import java.util.List;

 import org.apache.maven.scm.ChangeSet;

 import org.apache.maven.scm.ScmVersion;

 /**

  * @author <a href="mailto:evenisse@apache.org">Emmanuel Venisse</a>

  * @version $Id: ChangeLogSet.java 1306864 2012-03-29 13:43:18Z olamy $

  */

 public class ChangeLogSet

 {

     public static final String DEFAULT_ENCODING = "ISO-8859-1";

     private List<ChangeSet> entries;

     private Date startDate;

     private Date endDate;

     private ScmVersion startVersion;

     private ScmVersion endVersion;

     /**

      * Initializes a new instance of this class.

      *

      * @param startDate the start date/tag for this set.

      * @param endDate   the end date/tag for this set, or <code>null</code> if this set goes to the present time.

      */

     public ChangeLogSet( Date startDate, Date endDate )

     {

         this.startDate = startDate;

         this.endDate = endDate;

     }

     /**

      * Initializes a new instance of this class.

      *

      * @param entries   collection of {@link org.apache.maven.scm.ChangeSet} objects for this set.

      * @param startDate the start date/tag for this set.

      * @param endDate   the end date/tag for this set, or <code>null</code> if this set goes to the present time.

      */

     public ChangeLogSet( List<ChangeSet> entries, Date startDate, Date endDate )

     {

         this( startDate, endDate );

         setChangeSets( entries );

     }

     /**

      * Returns the start date.

      *

      * @return the start date.

      */

     public Date getStartDate()

     {

         return startDate;

     }

     /**

      * Returns the end date for this set.

      *

      * @return the end date for this set, or <code>null</code> if this set goes to the present time.

      */

     public Date getEndDate()

     {

         return endDate;

     }

     /**

      * Returns the start version (revision/branch/label) for this set.

      *

      * @return the start version (revision/branch/label) for this set, or <code>null</code>.

      */

     public ScmVersion getStartVersion()

     {

         return startVersion;

     }

     public void setStartVersion( ScmVersion startVersion )

     {

         this.startVersion = startVersion;

     }

     /**

      * Returns the end version (revision/branch/label) for this set.

      *

      * @return the end version (revision/branch/label) for this set, or <code>null</code>.

      */

     public ScmVersion getEndVersion()

     {

         return endVersion;

     }

     public void setEndVersion( ScmVersion endVersion )

     {

         this.endVersion = endVersion;

     }

     /**

      * Returns the collection of changeSet.

      *

      * @return the collection of {@link org.apache.maven.scm.ChangeSet} objects for this set.

      */

     public List<ChangeSet> getChangeSets()

     {

         return entries;

     }

     public void setChangeSets( List<ChangeSet> changeSets )

     {

         this.entries = changeSets;

     }

     /**

      * Creates an XML representation of this change log set with a default encoding (ISO-8859-1).

      */

     public String toXML()

     {

         return toXML( DEFAULT_ENCODING );

     }

     /**

      * Creates an XML representation of this change log set.

      */

     public String toXML( String encoding )

     {

         String encodingString = encoding;

         if ( encodingString == null )

         {

             encodingString = DEFAULT_ENCODING;

         }

         StringBuilder buffer = new StringBuilder();

         String pattern = "yyyyMMdd HH:mm:ss z";

         SimpleDateFormat formatter = new SimpleDateFormat( pattern );

         buffer.append( "<?xml version=\"1.0\" encoding=\"" + encodingString + "\"?>\n" );

         buffer.append( "<changeset datePattern=\"" )

             .append( pattern )

             .append( "\"" );

         if ( startDate != null )

         {

             buffer.append( " start=\"" )

                 .append( formatter.format( getStartDate() ) )

                 .append( "\"" );

         }

         if ( endDate != null )

         {

             buffer.append( " end=\"" )

                 .append( formatter.format( getEndDate() ) )

                 .append( "\"" );

         }

         if ( startVersion != null )

         {

             buffer.append( " startVersion=\"" )

                 .append( getStartVersion() )

                 .append( "\"" );

         }

         if ( endVersion != null )

         {

             buffer.append( " endVersion=\"" )

                 .append( getEndVersion() )

                 .append( "\"" );

         }

         buffer.append( ">\n" );

         //  Write out the entries

         for ( ChangeSet changeSet : getChangeSets() )

         {

             buffer.append( changeSet.toXML() );

         }

         buffer.append( "</changeset>\n" );

         return buffer.toString();

     }

 }